如何在此数据上使用PIVOT :?

本文介绍了如何在此数据上使用PIVOT :?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个看起来像这样的SQL Server表:

I have a SQL Server table that looks like this:

RESOURCE | DESCRIPTION | VALUE Test A Name | Resource A-xyz Test A | Height | 20 Test A | Unit | ft Test A | Location | Site 1 Test B | Volume | 30 Test C | Width | 10 Test C | Unit | in

我希望将其设置为以下格式:

I would like to get it into this format:

RESOURCE | Name | Height | Unit | Location | Volume | Width Test A | Resource A-xyz | 20 | ft | Site 1 | | Test B | | | | | 30 | Test C | | | in | | | 10

我遇到的一个问题是没有固定的描述模式.例如，资源测试B"可能与测试A"具有相同的描述，而测试C"可能缺少某些描述，而测试D"可能具有完全不同的集合.

One of the issues that I have is that there is no set pattern for description; for example, resource "Test B" might have all of the same descriptions as "Test A", while "Test C", might be missing some, and "Test D" might have a totally different set.

到目前为止，谷歌建议我要使用数据透视表，但是我仍然不确定如何使用上述数据.

So far Google is suggesting that I want to use a pivot table, but I am still not sure how to do that with the above data.

推荐答案

最后，我做了以下事情:

In the end, I did the following:

选择了所有不同的描述(超过70个！).

创建一个具有资源和每个单独描述作为字段的表

填充的资源列不同的资源名称

跑了一系列 更新以填充每个不同资源的剩余列 名称.

Selected all distinct descriptions (more than 70!).

Created a table that had resource and every single distinct description as fields

Populated resource column distinct resource names

Ran a series of updates to populate remaining columns for each distinct resource name.

例如

CREATE TABLE #tb1 ( [RESOURCE] varchar(100), [FIELD1] varchar(100), [FIELD2] varchar(50), . . . [LAST FIELD] varchar(50), ) INSERT INTO #tb1 (RESOURCE) SELECT DISTINCT RESOURCE FROM tb2 ORDER BY Resource ASC UPDATE #tb1 SET [FIELD1] = (SELECT VALUE FROM tb2 WHERE Resource = #tb1.Resource and Property = [FIELD1]) . . . UPDATE #tb1 SET [LAST FIELD] = (SELECT VALUE FROM tb2 WHERE Resource = #tb1.Resource and Property = [LAST FIELD])